2,2-二甲基-3-辛酮

4,4-dimethyl-1,1-diphenylpentan-3-one

1,1-difluoro-5,5-dimethylhexane-2,4-dione

4,4-dimethyl-1-(4-nitrophenyl)pent-1-en-3-one

3,3-dimethyl-1-(4-nitrophenyl)butan-2-one